Though tiny, this newfound satellite galaxy around M31 offers big lessons — and questions — about how galaxies evolve.

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Barnard's Star is a small, dim star of the type that astronomers call red dwarfs. Consequently, even though it is one of the ...

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Hubble’s latest image reveals the Small Magellanic Cloud (SMC), a nearby dwarf galaxy visible from Earth without a telescope.

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Young stars enveloped in a transformative cocoon of gas shine brightly in a new image from the Hubble Space Telescope.

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Two space missions reached their conclusion: one with a splashdown, the other with a quiet lunar death. And thrilling new ...

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